28972609520

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{379}}^1\times {\mathrm{9461}}^1$

素因数の和:9954

約数の個数: 80

約数和(自身を含む): 68214964320

約数和(自身を除く): 39242354800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 379, 404, 505, 758, 808, 1010, 1516, 1616, 1895, 2020, 3032, 3790, 4040, 6064, 7580, 8080, 9461, 15160, 18922, 30320, 37844, 38279, 47305, 75688, 76558, 94610, 151376, 153116, 189220, 191395, 306232, 378440, 382790, 612464, 756880, 765580, 955561, 1531160, 1911122, 3062320, 3585719, 3822244, 4777805, 7171438, 7644488, 9555610, 14342876, 15288976, 17928595, 19111220, 28685752, 35857190, 38222440, 57371504, 71714380, 76444880, 143428760, 286857520, 362157619, 724315238, 1448630476, 1810788095, 2897260952, 3621576190, 5794521904, 7243152380, 14486304760, 28972609520]

約数ペア:

[(1, 28972609520), (2, 14486304760), (4, 7243152380), (5, 5794521904), (8, 3621576190), (10, 2897260952), (16, 1810788095), (20, 1448630476), (40, 724315238), (80, 362157619), (101, 286857520), (202, 143428760), (379, 76444880), (404, 71714380), (505, 57371504), (758, 38222440), (808, 35857190), (1010, 28685752), (1516, 19111220), (1616, 17928595), (1895, 15288976), (2020, 14342876), (3032, 9555610), (3790, 7644488), (4040, 7171438), (6064, 4777805), (7580, 3822244), (8080, 3585719), (9461, 3062320), (15160, 1911122), (18922, 1531160), (30320, 955561), (37844, 765580), (38279, 756880), (47305, 612464), (75688, 382790), (76558, 378440), (94610, 306232), (151376, 191395), (153116, 189220)]